Color lighting attachment for reflectors



April 28,1925. 1,536,004

P. M. HOTCHKIN COLOR LIGHTING ATTACHMENT FOR REFLECTORS Filed Feli. 24,1920 Patented Apr. 28, 1925 UNITED STATES PATENT OFFICE.

PAUL-ML HOTCHKIN, O'l CHICAGO, ILLINOIS, A'SSXG'NOR- TO THE NATIONALX-RAY REFLECTOR COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OFILLINOIS.

COLOR LIGHTING ATTACHMENT FOB REFLEC'IORS.

Application filed February 24, 1820. Serial No. 360,822.

To all whom it may concern:

Be it known that'I, PAUL M. Hororrnrn, a citizen of the United States,residing at Chicago, in the county of Cook and State of 1llinois,'haveinvented certain new and use ful Improvements in Color Lighting Attachments for Reflectors, of which the following is a specification.

The present invention relates to the art of displaylighting and ism'oreparticularly concerned with instrumentalities for the production ofcolored effects in connection with such lighting. i

The primary object of the invention is to provide a novel form ofattachment for the reflectors usually employed in display lighting,whereby to color the light rays emanating from the 1"etlectors, andthereby to obtain colored effects on the objects to which the light 'isdirected.

A further Ob]8Ct of the invention is toembody such anattachmentfin the:form of an adapter that may be manufactured in standard form soas to fitstandard reflec' tors, the construction being such as to enable itsready application to and removal fronrtliereflectors, and which, when soapplied, Will permit access freely to be had to the interior-of thereflectors for cleaning the same or replacing the lamps used therewith.

Furthermore, the invention seeks to provide an attachment of the classreferred to wherein the coloring media may be expeditiously changed whensuch is desired in order to modify the color scheme to meet varyingrequirements, and to so construct the attachment that it shall possessmarked advantages in point of firstcost, maintenance, appearance andease with which it may beprocured.

Other objects and advantages will appear 7 as the nature of theinvention is better understood, the latter consisting substantially 46in the novelconstruction, combination and arrangement of partshereinafter fully de scribed, illustrated in the accompanying drawings,and finally pointedlout in the appended claims. 1 l 1 5o i rpracticalembodiment of the invention is herein presented to disclose theadaptability of the same tothe purposes for which it is intended, butthis disclosure for lighting fixtures equipped with a color attachmentconstructed in accordance with the present invention. i

Fig. 2 is a longitudinal sectional view thereof, as on the line 2 2,Fig. 1.

Fig. 3 is a transverse sectional view, parts being broken away as on theline Fig. 1.

teferring in detail to the accompanying drawings, the numeral 10designates a reflector of standard form, commonly enrployed in displaylighting, the same being of the parabolic type frequently used in theillumination of the display windows of stores and in the likelocalities. This reflector has the usual contracted neck 11 at its upperportion for encircling an electric light bulb and is, of course, open atits lower end for ready passage of the light rays reflected thereby.

As indicated, the present invention is an attachment for templates theemployment of an adapter generally in the form of a rectangular frame 12the top of which is provided with an enlarged opening '13 the dimensionsof which are substantially the same as the dimensions of the open end ofthe reflector 10. Surrounding the opening 13 is an upstanding fiange 1 1which is designed to fit the inner walls of the reflector 10 at itsmouth and thereby to enable the adapter to be fitted to the reflector.The flange 14, when the frame 12 has been fitted to the reflector, alsoprevents relative crosswise movement of the adapter and the reflector,thus maintaining the color screen in proper position over the reflectorto receive the light rays therefrom.

The adapter 12 is provided-with side flanges 15, a rear flange 16 whichextends between the rear ends of the side flanges 15, and a front flange17. The front flange 17 is of less width than the side and rear flanges15 and 16, respectively, and this provides a mouth at the forward end ofthe adapter 12 for permitting introduction and coloring the light rays.emanating from the reflector 10. It coniii removal of the color screento and from the adapter. This is designated by the numeral 18, and itmay be made of glass, gelatin or other material suitable for the purposeand of the required color. For protecting the screen 18 against breakageit may be provided at its opposite sides with wire mesh fabric 19. Thisis especially desirable if the screens be made of gelatin or suchmaterial as is easily fractured.

The screen 18 is supported by horizontal inwardly extending guideflanges 20 formed at the lower edges of the side walls 15 and spaced :1suitable distance below the top of the adapter 12 for facilitating freemovement of the screen into and from the adapter. when inserted withinthe adapter the rear end of the screen will abut against the rear wall16 and thereby be prevented becoming displaced at the rear end of theadapter.

To sustain the adapter 12 in assembled re lation with respect to thereflector 10 a supporting loop 21 is employed. This loop may he of anydesired flexible material and is adapted to embrace the neck 11 of thereflector 10 as clearly illustrated in Fig. l, and to .fit over theupper portion of said rcflector. One end of the loop 21 has an attachingstrap 22 which is suitably connected to the rear end of the adapter 12,a flexible coupling 23, preferably in the form of a coil spring, beingconnected to the other end of the supporting loop 21 and provided with ahook 24 adapted to engage an opening formed in the flange 17 at thefront of the adapter. It will thus be seen that the adapter isyieldingly connected to and supported by the reflector 10, and by simplydisengaging the hook 2 1 from the flange 17 the supporting loop 21 maybe readily removed from about the neck of the reflector to permitdetachment of the adapter from the reflector.

in the use of the hereii'idescribed invention sci-rams of the desiredcolor are inserted in the adapter and thereby intercept the light raysemanating from the reflector .10. llilierently colored screens may besubstituted from time to time in order to change the colored effectsproduced by the screens, and this may be accomplished by simply slidingthe screen outwardly from the adapter, and thereby overcoming necessityof removing the adapter from the reflector for effecting such change.Access also may be readily had to the interior of the reflector by theremoval of the color screen 18, either for cleaning the interior of thereflector or relamping the same.

For ventilating the attachment the top thereof is provided at itscorners, and at points therein which lie at the exterior of thereflector when the. attachment is assembled then-on, with a plurality ofopen- These openings are in direct comings 25.

with the space above the munication screen 18.

I claim:

1. An attachment of the class described, comprising a supporting framehaving an opening therein for passage of light rays, oppositely-disposedguide flanges arranged at the sides of said frame, a displaceable colorscreen supported by said guide flanges to intercept the light rayspassing through said opening, said guide flanges providing an openingfor the insertion of said screen accessible when the frame is inposition on a reflector, and means for attaching said frame to a lightreflector.

2. An attachment of the class described, comprising a supporting framehaving an opening therein for passage of light rays, an upstandingflange surrounding said opening to adapt said frame to the reflectorwith which the same is associated, a color screen supported by saidframe to intercept the light rays passing through said opening, andmeans for attaching said frame to said light reflector.

3. An attachment of the class described, comprising a supporting framehaving an opening therein for passage of light ray-s, a pair of guideflanges arranged at opposite sides of said frame, a color screenslidably mounted on said guide flanges and adapted to intercept thelight rays passing through said opening, said guide flanges providing anopening for the insertion of said screen accessible when the frame is inposition on a reflector, means at one end of said guide flange forlimiting movement of said color screen over said flanges, and means forattaching said frame to a light reflector.

4. An attachment of the class described, comprising a box-likesupporting frame having an opening at one side for passage of light raysand provided at said opening with means for adapting the frame to theconfiguration of a light reflector, said frame also having oppositelydisposed flanges and an opening affording access to said flanges, acolor screen displaeeably mounted on said flanges to intercept the lightrays passing through said frame and movable into and from the latterthrough said opening afford ing access to said flanges, thelast-mentioned opening being accessible for insertion of the screen whenthe frame is in position on a reflector, and means for attaching saidframe to a light reflector.

An attachment of the class described, con'iprising a box-likesi'ipporting frame having an opening at one side for passage of lightrays and provided with an upstanding flange surrounding said opening forfitting the configuration of a light reflector to adapt the supportingframe to the light reflector, said, f'ame also having oppositely oflight rays emanating from saidreflector, said adapter having meansconforming to the configuration of the reflector to fit the adapterthereto a color screen di-splaceably mounted in said adapter tointercept the light rays passing therethrongh, and means for detachablyconnecting the adapter to the light reflector.

In testimony whereof I have hereunto subscribed my name in the presenceof two sub- 20 scribing witnesses.

PAUL M. HOTCHKIN. lVitnesses ESTELLA WOLFE, FRED J. STIER.

